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SAE J1939 Programming with Arduino - SAE J1939 Monitoring Examples
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The following chapter is primarily about SAE J1939 data monitoring, i.e. the Arduino projects as described work mainly in “Listen-Only” mode. Any bidirectional communication with the vehicle bus requires an SAE J1939 protocol stack implementation, specifically the address claim process. Without a node (source) [...]
SAE J1939 Programming with Arduino - SAE J1939 Stress Simulator
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The increased flexibility in combination with the finer timer resolution we reached in the previous project allows us the easy implementation of another task, namely a stress simulator.Stress simulator, in this case, means increasing the vehicle bus load and thus “stress testing” [...]
SAE J1939 Programming with Arduino - Arduino Code (Sketch) Advanced Program Version
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. While the previous programming sample proves the simplicity of developing an SAE J1939 data traffic simulator, I deemed it necessary to improve the code in way that makes simulation extensions and modifications easier. The two elements that needed improvement were the message [...]
SAE J1939 Programming with Arduino - Arduino Code (Sketch) Proof of Concept
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The result was tested with an ADFweb CAN-to-USB Gateway in combination with its Windows-based CAN Bus analyzer tool. As the screen shot below shows, the PGN 65267 (Vehicle Position: 0x18FEF320) is received every 5 seconds, while PGN 65269 (Ambient Conditions: 0x18FEF530) appears every [...]
SAE J1939 Programming with Arduino - Arduino Code (Sketch)
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. The Arduino code is quite simple and virtually self-explanatory. However, let me lose a few words on the program’s structure.First of all, depending on the CAN Bus shield used for this programming sample, please make sure you set the proper CS [...]
SAE J1939 Programming with Arduino - SAE J1939 Monitoring And Simulation
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. As I wrote before, both versions of the Arduino used in this book, the Uno and the Mega 2560, are well suitable for SAE J1939 monitoring and simulation projects. Until now, the simulation of SAE J1939 data traffic involved the purchase of expensive [...]
SAE J1939 Applications with the Arduino
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. In general, there are three different intentions for connecting to a J1939 vehicle network: Mere monitoring, processing, and display of network data traffic. All functions as described under 1. but extended by [...]
SAE J1939 Programming with Arduino - Message Design
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. For this programming sample I have randomly chosen two PGNs from the vast selection of available parameter group numbers. They are: PGN 65267 – Vehicle Position, provides the vehicle’s latitude and longitude. Transmission Repetition [...]
SAE J1939 Programming with Arduino - SAE J1939 Simulation Example
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino.The following programming sample demonstrates effectively how easy simulating SAE J1939 data traffic can be (while the level of complexity can be easily adjusted to the application requirements). However, before we dive into the actual coding, we need to design the simulated messages, [...]
SAE J1939 Programming with Arduino - SAE J1939 Compliance Criteria
This post is part of a series about SAE J1939 ECU Programming & Vehicle Bus Simulation with Arduino. One question that has been raised repeatedly is the one about SAE J1939 compliance. Officially, the SAE J1939-82 Standard describes the compliance tests and procedures to verify an SAE J1939 ECU will operate correctly on an SAE J1939 network. Unfortunately, the SAE J1939 [...]